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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
I couldnt solve it. How did you realize the answer? Is there any math principle I didnt know or it was simply intuition?
this was my solution and I am surprised to see other more complicated options with more votes. Whats wrong with this approach?